.cost .back{
    padding: 20px;
}
.cost .back a{
    font-size: 18px;
    color: #666;
}
.cost .layui-tab-title li{
    width: 25%;
    font-size: 18px;
    color: #666;
}
.cost .layui-tab-title li.layui-this{
    color: #0ba9f9;
}
.cost .layui-tab-title li.layui-this:after{
    border-bottom: 2px solid #0ba9f9;
}
.cost table th,.cost table td{
    border: 1px solid #dddddd;
    padding: 5px;
}
.cost table{
    border-collapse: collapse;
    text-align: center;
    color: #666;
}
